Bell Hydromatics | Piston Pumps

HV Series Variable Volume Piston Pumps

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Features:

Combining special internal designs and strict engineering disciplines has reduced noise level to new lows in whole pressure zones.
Depending on variety of application needs multiple optional unique control methods are available, it does not only reduce a number of unnecessary hoses, pipes and control valves but also increase efficiency and save horsepower, and cost.
Less capacity reservoirs can be selected and applied because of performances of low pressure loss and less head generation.
Wide application ranges:it is very suitable for machine tools, plastic injection molding machines, forging machines and other industrial machines etc..
Mounting flanges are made to SAE A or B 2-bolt (V15.18, 38 types) and SAE-C 2 & 4-bolt (HV-50.HV-70 types).

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Ordering Code
Control Type
Operating Data
Assembly
Performance Data
Dimensions
Piston Double Pump

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Ordering Code

HV	38	A	4	R	S	F	-20
Series No	Displacement cc/rev (in³/rev)	Control Type	Pressure Compensating Range bar(PSI)	Rotation	Port Position	Mounting	Design No. Shaft Option Flange Option
HV Variable Volume Piston Pump	15(0.9) 18(1.1) 23(1.4) 38(2.3) 50(3.1) 70(4.3)	Standard	1:8~70(115-1000) 2:15~140(210-2000) 3:20~210(280-3000) 4:20~250(280-3500)	R:Clockwise(CW) L:Counter Clockwise(CCW) Viewed from Shaft End	S:Side port R:Axial port	F:FlangeMounting L:Foot Mounting	20: PT(Rc) Flange kits, Straight Key 2080:PF(G) Flange Kits,Straight Key 2090:NPT Flange Kits,Straight Key 30:PT(Rc) Flange Kits,SAE B (13 Tooth) 3080:PF(G) Flange Kits,SAE B(13 Tooth) 3090:NPT Flange Kits,SAE B (13 Tooth)
		A:Pressure Compensating(manual)
		Option
		B:Pressure Compensating Type Pilot
		(Remote Control)
		C:TwoPressure-Two FLow
DV Variable Volume Piston Pump	15(0.9) 18(1.1) 23(1.4) 38(2.3)	Control Type
		D:Solenoid Cut-Off Control Type
		Control Type
		E:Two Pressure Cut-Off Control Type
		F:Two Pressure,Two Flow Control
		Type by Solenoid Valve
		G:Two Pressure,Two Flow Control
		Type by Solenoid Valve
		H:Power Maching Control
		HL:Load Sensing Compensator
		HJ:Electro-Hydraulic Proportional
		Load Sensing Type
		DV Series available in A,B,C,D,H and
		HL type only

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Standard Type

Symbol	Size	Description
A	15	Pressure Compensating Type(Manual) When the pressure reaches the value set with the compensator. The flow is reduced automatically and the set pressure is maintained. The Pressure and flow are controlled automatically
	18
	23
	38
	50
	70
	100

Option

Symbol	Size	Description
B	15	Pressure Compensating Type The pressure can be controlled according to the pilot pressure The flow can be controlled manually.
	18
	23
	38
	50
	70
	100
C	15	Two Pressure-Two Flow Control Type By means of the sequence valve, two stage flow rate can be obtained and each flow rate has the different pressure eventually enabling energy zone.
	18
	23
	38
	50
	70
	100
D	15	Solenoid cut off Control Type. An unloading Solenoid valve is used to minimize the lost energy when the pump output is not required. Heat generated is very small.
	18
	23
	38
	50
	70
	100
E	15	Two Pressure cut off Control TypeBy means of ON OFF control of solenoid valves,two different pressure compensating types can be obtained.
	18
	23
	38
	50
	70
	100
F	15	Two Pressure-Two Flow Control Type by Solenoid Valve Actuators can be shifted slowly(high pressure low flow) and quickly(low pressure high flow) by switching directions of solenoid control valve. This type of applied to actuator requiring operations to shift speed from high to low or low high. pressure “P1,P2” and flow “q1,q2” can be adjusted optionally.
	18
	23
	38
	50
	70
	100
G1	15	Multi stage & Single stage Pressure Control Type(With Cylinder) Actuators can be shifted slowly ( high pressure low flow) and Quickly (low pressure high flow) by switching directions of solenoid control valve.
	18
	23
	38
	50
	70
	100
H	15	POWER MACHING CONTROL An ideal energy conservation system,”Power matching system” can be directional control valves with this control system.
	18
	23
	38
	50
	70
	100
HL	15	Load Sensing Compensator.The HL compensator is used for load sensing circuits and is a true load sensor. This is the B compensator with a pin.the pin prevents pilot flow from entering the circuit which will eliminate creeping of hte load. The HL compensator will let the pump deliver a constant flow rate to the circuit by providing an adjustable P across the customers office or valve. The Pump will operate at 17.2-27.5 bar(250-400 PSI) above Load Presure.
	18
	23
	38
	50
	70
	100
HJ	15	Electro-Hydraulic Proportional Load Sensing Type. This is an energy saving type control which regulates the pump flow and load pressure to be at absolute minimum necessary level to operate hte actuator.
	18
	23
	38
	50
	70
	100